how does respiration differ in whale and human
Answers
Answer:
A whale's lungs work like ours do, but they make the most of each breath. In one breath, a humans body can absorb about 15 percent of the oxygen inhaled. The whale, on the other hand, absorbs as much as 90 percent of the oxygen it breathes in. ... A whale's "nostrils" are called blowholes and are on the top of its head.
Respiration differ in whale and human:
Whales cannot breathe underwater because they are mammals and not fish. This means that their breathing organs are lungs, rather than gills. So, like humans, whales need to come to the surface to take a deep breath of fresh air and when they are underwater they hold their breath. So, The correct option is 'Lungs'.
Humans, on the other hand, breathe in first and then exhale, leaving a lot of stale air in our lungs. We exchange only about 10-15% of the air in our lungs with every breath, while whales exchange about 80 to 90%. They also have a very quick gas exchange.
When we breathe in, the muscle below the rib cage (called the diaphragm) is pulled down, and air gets sucked into the rib cage, filling the lungs. Blood cells circulating through tiny blood vessels near the lungs pick up oxygen and carry it around the body to the sites of respiration.
Whales and dolphins are mammals and breathe air into their lungs, just like we do. They breathe through nostrils, called a blowhole, located right on top of their heads. This allows them to take breaths by exposing just the top of their heads to the air while they are swimming or resting under the water.